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        <title>课程表</title>
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            table{background-color: aliceblue;}
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        <table border="1">
            <caption>课程表</caption>
            <tr>
                <th colspan="2">时间\日期</th>
                <th>一</th>
                <th>二</th>
                <th>三</th>
                <th>四</th>
                <th>五</th>
            </tr>
            <tr>
                <th rowspan="2">上午</th>
                <td>9:30-10:15</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
            </tr>
            <tr>
                <td>10:25-11:10</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
            </tr>
            <tr>
                <th colspan="7" height="20px"></th>
            </tr>
            <tr>
                <th rowspan="2">下午</th>
                <td>14:30-15:15</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
            </tr>
            <tr>
                <td>15:25-16:10</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
                <td>语文</td>
            </tr>
            

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